Malware Analysis Report

2025-01-02 02:17

Sample ID 240718-bg88maxhnj
Target 558f964263bd1466bfa712eb75e2622f_JaffaCakes118
SHA256 9ed666a14b35e90e188ad745be6cd9854f32f813c7568e57d1e0f9d2955f14ed
Tags
xtremerat persistence rat spyware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9ed666a14b35e90e188ad745be6cd9854f32f813c7568e57d1e0f9d2955f14ed

Threat Level: Known bad

The file 558f964263bd1466bfa712eb75e2622f_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware

Xtremerat family

XtremeRAT

Boot or Logon Autostart Execution: Active Setup

Deletes itself

Adds Run key to start application

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-18 01:08

Signatures

Xtremerat family

xtremerat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-18 01:08

Reported

2024-07-18 01:10

Platform

win7-20240708-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe"

Signatures

XtremeRAT

persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\wbem\\xml.exe restart" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\explorer.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\wbem\\xml.exe" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\wbem\\xml.exe" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\wbem\xml.exe C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\wbem\xml.exe C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\wbem\ C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2716 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2716 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2716 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2716 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2716 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\explorer.exe
PID 2716 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\explorer.exe
PID 2716 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\explorer.exe
PID 2716 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\explorer.exe
PID 2716 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\explorer.exe
PID 2716 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\explorer.exe

explorer.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 namehost.dyndns.org udp

Files

memory/2996-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2768-11-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2996-8-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2716-12-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2768-14-0x0000000000C80000-0x0000000000C93000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-18 01:08

Reported

2024-07-18 01:10

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe"

Signatures

XtremeRAT

persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\wbem\\xml.exe restart" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\wbem\\xml.exe" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\wbem\\xml.exe" C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\wbem\xml.exe C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\wbem\xml.exe C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\wbem\ C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\558f964263bd1466bfa712eb75e2622f_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\explorer.exe

explorer.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 namehost.dyndns.org udp
US 8.8.8.8:53 211.143.182.52.in-addr.arpa udp

Files

memory/2128-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/1500-7-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2128-9-0x0000000000C80000-0x0000000000C93000-memory.dmp